PAX COMM
Presents

RECEIVING, TRANSMITTING and SPECIAL PURPOSE TUBES

Brought To You
By

PATUXENT COMMUNICATIONS


Tubes are no longer tubes. Tubes are now Vacuum Electron Devices or VEDs.
OK! I can live with that.
Enjoy my VED list and the VED boxes plus all the other stuff.

The tubes are presented in a unique format. The brand, status, condition of the writing, country of origin, EIA manufacuter and date codes are shown. Additionally, the condition of the box and a link to a picture of the box style is given for all New/NOS tubes. And YES, you can choose the specific tube you want, knowing it's condition beforehand. This is especially useful to collectors. All that, and the prices ain't bad either! Please be very specific when ordering to be sure we send the correct tubes. Other parts and items are presented similarly.

All tubes have been checked on a mutual conductance or dynamic conductance tester. In most cases, on both. They are guaranteed for 95 days from the invoice date. The warranty is limited to like replacement or refund (our choice). This applies to all items. We are constantly adding to our stock, but everything is subject to prior sale. First order, first served.

I've always hated the phrase 'Prices subject to change without notice". You won't find that here. These prices are fixed. The only change will be if the price goes down between the time you order and we ship your stuff. You pay the lower price. If the price goes up, you still pay the lower posted price. That way, if you quote a price for resale, you don't have to change. My only caveat is if it's gone, it's gone. We do not order.

The tubes are in numeric-alpha order regardless of function. We think you'll find a few surprises in the list. Hint: Use your browser 'FIND' function to jump right to the tube you want. Or just browse and enjoy!


Most descriptions are self-explanatory, but here's a clarification of a few codes:

  1. #. In the early days of computer inventory (BBS - Before Bubble Search), the computer record number was used for quick access. If the box is noted with #, it means the record number is written on the box. We did that and so did another company from whom we bought some of the stock.
  2. @. Means old price or other note written on box.
  3. *. Means the tube is reboxed in the proper brand box and neatly remarked, but it is not the original box.
  4. -. A dash in the cell means that information was not given on the tube.
  5. ?. Means the information is not readable.
  6. The term NEW is used freely. Actually the 'NEW' tubes are all NOS (New Old Stock), even the newer. We are not buying new tubes, only excess stock or from closed dealers.
  7. BN means 'Believed New', or rather NOS.
  8. New tubes may have been installed for troubleshooting by professional technicians, removed from new equipment or taken back out of a repaired item that was never picked up. All have been tested.
  9. Used tubes were obviously removed from used equipment and have the letter 'u' after the type. All were thoroughly tested and carry the same warranty as new tubes. Used tubes will be supplied with a properly marked box to protect the tube, but no statement is made as to style or condition, although the condition will be reasonable.
  10. Pull may be new or used. If used, very little because writing and condition look almost new. Probably very nicely seasoned, just not by the manufacturer as they do with industrial tubes.
  11. If you really want some fun, go to the Tube Box menu page. If you like tubes, you're gonna' love this!
  12. Lastly, please note the writing on these pages is 'boomer or pre-boomer'. In other words, it's written so you can read without squinting. Enjoy :-)

FYI. We are a small part-time business selling excess stock from other small or closed service shops. We do not order. That's how our prices are so low. All that we have is shown on the pages. If it's not shown in the quantity you need, we don't have it.

We have expanded an existing feature. Tubes for which we have an exact equivalent are now listed. You will be directed to the equivalent. This makes a great cross reference. I have not tried to make it a total cross, only the tubes that we have are listed.
We also sometimes make a 'try' recommendation. Remember; crosses are not always in both directions. For instance: I would not hesitate to use a 6AQ5/A where I needed a 6005 (except maybe in aviation). However, there are many that shouldn't be back crossed in any application. For the most part, you can trust my recommendations. But check the specs anyway!
'use' = you can substitute with confidence.
'see' = I have confidence it will work OK (probably have done it), but nothing is positive. i.e. Look up the specs. If you think it'll work, I do too.
'try' is similar to 'see', but not quite as much confidence. Again check the specs. If you think it'll work in your application, I may not agree. On the other hand, vice versa. Seriously, it should work. Otherwise, I wouldn't have listed it.

Another note: Many 'professional' cross references suggest indirectly heated cathode replacements for directly heated (and vice-versa) among the '5xx' series of rectifier tubes and high voltage rectifiers. This may sometimes work, but is generally not a good practice unless the manufacturer has made it a multi-type (example: GE's 3DC3/3CU3A). Apparently they made concessions in the heater design to accomodate both types. Normally, the equipment was designed to use one or the other. I have tried to avoid those 'recommendations' and when appropriate suggested a cross with the correct cathode type.

THE DISCLAIMER: Pax Comm makes no gaurantee that suggested crosses will work in your application. Use only original types in Aviation or other safety critical applications.
C'mon now, we're all pros. If you don't know when and how to make subs, you shouldn't be here.

Some of the more interesting types have pictures. Click on brand or type. This is a process in work.
All the pictures in all sections are from our own collection. We do not believe we have infringed on any copyrights. If we have, advise us and we will remove it provided you can document the infringement.
Note to webmasters: This site is copyrighted, however you may use any pictures on your pages provided you provide a link to this site. Make links to this page.

NEW FEATURE (tubes only)
If requested a data sheet(s) will be shipped with each tube type at no additional charge. These may be one sheet or many sheets. You must ask at the time of the order.


JUMP TO TUBE PAGE SELECTOR
0A2 - 2Y2 3A2 - 3V4 4AU6 - 4Y25
5A - 5Z10 6A4 - 6AZ8 6B6 - 6BZ8
6C4 - 6DZ4 6E6 - 6GY8 6H2 - 6KZ8
6L5 - 6Z31 7A4 - 11Y9 12A5 - 12DZ6
12E13 - 12W6 13DE7 - 19T8 20A3 - 2081
4310A - 38955 A239 - CV955 CV1059 - CX313
D's - L's M's N's - Z's
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LINKS: These folks have graciously linked to us. We are pleased to reciprocate!
  • Udo Radtke's Tube Collection. Identification of antique tubes by picture.
  • Tales From the Tone Lounge. More Tube Boxes. A bunch I never heard of.
  • World Tube Audio Portal. Long list of links for everything electronic.
  • Oskari Heinonen's Finnish Valve Site. Suomalainen links to electronics.

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